Tubbed rear end
Transforming a stock wheel well into a fully tubbed rear end ready for pro street tyres.
Chassis / Cages / Conversions
Monro Racecars
Motorsport fabrication for cars that punish weak metal.
Based on Bribie Island since 2009, the workshop engineers the structures that keep high-horsepower street and drag builds straight, compliant, and ready for hard launches.
- 22+
- Years fabricating on Bribie Island
- 300+
- Chassis and structural jobs completed
- 4.9
- Average review rating across social proof
Current focus
High-load chassis work
Queue signal
Large builds near 6 months
Street Machine feature cars
Drag Challenge builds
High horsepower restorations
Australia-wide customer logistics
ChassisCages9-inch conversionsTubsFour-linkComplianceDiff housingsFirewall workChassisCages9-inch conversionsTubsFour-linkComplianceDiff housingsFirewall workChassisCages9-inch conversionsTubsFour-linkComplianceDiff housingsFirewall work
Fabrication services
Critical metalwork for launches, compliance, and future upgrades.
The work is structural first: chassis geometry, cage fitment, driveline loads, tyre clearance, and serviceability are treated as one system.
Structural focus
Built around the loads that matter.
Fixtures, weld sequencing, material choice, and clearance checks are all tuned for cars that see real force.
Motorsport Chassis FabricationFull and partial chassis builds engineered to withstand four-digit horsepower, with precise jigging, mild steel or chromoly construction, and modular design for future upgrades.Full tube-frame conversionsFour-link and ladder bar setupCAD-verified geometryDifferential & Driveline Conversions9-inch Ford style differentials, narrowed housings, link kits, custom brackets, and driveline strengthening tailored to street/strip and drag-and-drive applications.Custom fabricated housingsBillet mount and brace integrationsLink kitsRoll Cages & Safety StructuresMotorsports Australia compliant roll cages, half cages, intrusion bars, and occupant protection structures designed for real-world racing conditions.IHRA / ANDRA spec cagesPrecision bent chromoly tubingSeamless cabin integrationSheet-Metal & Underbody ReinforcementFirewall, tubs, transmission tunnels, and structural bracing that prepare street cars for the torque loads of modern powerplants.Mini-tubs & pro touring tubsFirewall fabricationChassis connectors
Why Monro Racecars
A fabrication crew with the tooling and discipline to keep serious builds competitive.
Motorsport fabrication only. The calendar, equipment, and QA rhythm are built around chassis work instead of general repair.
- 22+ years
- Continuous fabrication on Bribie Island
- 300+ builds
- Chassis and structural projects completed
- 4.9 avg
- Average rating across Google and social reviews
- IHRA & ANDRA
- Compliance documentation
Proven method
Four stages from brief to handover.
Every phase creates fewer surprises for the rest of the build: paint, wiring, engineering, and final assembly all benefit from a documented metalwork plan.
- 01
Stage 1
Consult & specification
We map out your build goals, compliance requirements, and performance targets to define fabrication scope and timelines.
- 02
Stage 2
CAD & fixture preparation
Detailed measurement, CAD modelling, and jig setup to ensure accuracy before the first cut or weld.
- 03
Stage 3
Fabrication & fit-out
Precision welding, mock-up, and iterative fit tests to guarantee clearances, strength, and serviceability.
- 04
Stage 4
Validation & handover
Quality checks and delivery planning so you can progress to paint, wiring, and final assembly.
Fabrication transformations
Metalwork that unlocks tyre, torque, and repeatable launches.
Before/after comparisons, 4-link conversions, chassis jobs, tubs, and workshop progress.
Chassis reinforcement
Boxed rails and bracing to handle a blown small-block and transbrake launches.
Location and service radius
Bribie Island workshop serving Queensland performance hubs and interstate builds.
The shop operates from Bongaree, with cars travelling from across Australia when the scope calls for specialist fabrication.
Suburbs
- Bongaree
- Sandstone Point
- Caboolture
- Burpengary
- North Lakes
Regions
- Bribie Island
- Moreton Bay
- Sunshine Coast
- Greater Brisbane
- Wide Bay
Cities
- Brisbane
- Sunshine Coast
- Gold Coast
- Toowoomba
Phone
0493 466 042Hours
Mon-Thurs 7am-2:30pm / Fri 7am-12:30pm
Common build questions
Clarity before anyone cuts steel.
Lead times, interstate logistics, repairs, and scope changes are best settled before the vehicle is booked into the calendar.
Yes. Customers have towed their cars from across Australia including Sydney, Canberra, South Australia, Western Australia, and Townsville. We work with you on timeline of your booked delivery and pick up.
Large-scale builds are currently around a 6-month wait. Rear end kits are subject to parts availability. Share your timing so we can align the schedule.
Absolutely. We assess existing fabrication, carry out repairs or redesign elements, and supply recommendations to bring the build up to motorsport standards.
Project intake
Ready to build? Send the workshop a fabrication brief.
Share the car, horsepower target, intended use, race class, and timing. The team responds within two business days with next steps.
Workshop updates
Current fabrication notes from the shop floor.
Recent progress, handovers, and metalwork details from active builds.
Four-link upgrade underway
Cutting in new brackets and plating the rails before we fit the fabricated 9-inch for this blown HQ ute.
Chromoly cage certification
Final inspection before logging this ANDRA cage. Tube fit-up is tight to the roof line for maximum cabin space.
Sheet-metal artistry
Mini tubs and a new tunnel stitched together for this drag-and-drive Torana. Finishing with seam sealer and ceramic coat.